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Last seen: Apr 3, 2026
@murchison2003 Sounds like it might be setup with a fixed flow temp without weather compensation? Might be best to set up a new thread and post the ...
@colin thoughts on my COP? Total 2022 is from March 2022 to Jan 2023. Looking forward to seeing how figures compare to last year now that it seems to ...
@editor Vaillant software is flaky in my experience. There are times when it doesn't connect and a circular arrow icon just spins on the screen. I'm t...
Hi @colin any chance of a graph of your Jan usage please? I've reduced the curve to 0.35 setback 18 deg (running weekdays until 16.00 then 19.5 deg un...
@colin for external temperature I have two methods currently. The first is the Vaillant external temperature sensor via a custom Vaillant HACS integra...
@colin you do have a VMZ AI panel, any chance you could compare your settings to mine posted above? Consumption and average flow temp has come right...
@colin have you got any pictures of your installation you could share please? Do you have any room stats?
@heacol yes, worried that's the case. Need someone to take a look at it, but need remaining insulation issues and rad changes to be addressed first. N...
@colin thanks, do you have an intermediate heat exchanger (VMZ MWT 150) and buffer tank? I am also interested in your settings for your VMZ AI: Co...
@cathoderay This looks more like my usage profile. What's your setup/house size etc? DO you have heat exchanger and buffer tank?
@colin thanks, please can you send the same graphs for DHW consumption and yield?
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